Otto Wagner Church or Steinhof Church, (Kirche am Steinhof) - also called the Church of St. Leopold, is the Roman Catholic oratory of the Steinhof Psychiatric Hospital in Vienna.
The building designed by Otto Wagner is considered one of the most important Art Nouveau churches in the world.

The four bronze angels on the columns atop the entry portico are made by the sculptor Othmar Schimkowitz (1864-1947).